HVAC Installation in Leesburg, VA
A new system here will heat from October through April and cool from June through September every year. Tell us about the house, and a licensed contractor who covers Loudoun County will get in touch.
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Eleven months of the year, one system carries the load
In Leesburg your heating and cooling system barely gets a rest. Winter nights average 26°F from December through February, and the furnace or heat pump runs October through April, seven months straight. Summer afternoons average 85°F, and cooling runs June through September on top of that. Only one month of the year asks nothing of the system.
That kind of use calls for equipment sized and installed to hold up to both ends of the year, not just the mild months in between. Most homes here heat with gas, so the furnace and the coil need to be matched to each other and to the house, not swapped in as generic parts. And with 22% of Virginia households losing power for a full day or more in 2024, and ten years of winter storms and damaging wind behind that number, it is worth asking your contractor what happens to your new system when the power goes out, and for how long.
- 7 months
- October through April, your system heats
- 4 months
- June through September, it cools
- 26°F
- the average winter night it heats against
- 85°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Virginia requires HVAC contractors to hold a state license.
The license is tied to the contractor, not to your particular job, so it follows them from one house to the next. Virginia issues it through the Board for Contractors. The one exception is work under $1,000, which the state allows an unlicensed contractor to do. A full heating and cooling system installation is well past that line.
In most cities and counties, a job like this also needs a permit from the local building office, and an inspection once the work is done. That inspection is where a bad gas connection or wiring problem gets caught, separate from anything the license itself covers.
Sources: Virginia General Assembly · Virginia Department of Professional and Occupational Regulation
- When should I replace my HVAC system?
- Once it's breaking down more than once a season, or it can't keep up on the coldest nights or hottest afternoons, it's time to replace it rather than keep repairing it. A system old enough to need frequent repair calls is worth replacing before it fails outright, since here that could mean no heat when it's 26 degrees outside. If the system is still fairly new and this is its first real repair, fixing it is usually the better call. A contractor can look at the age and repair history of your specific unit and tell you which side of that line you're on.
- Should I replace my furnace and air conditioner at the same time?
- If they're close in age, yes. A furnace and air conditioner installed together are matched to work as one system, and replacing only one means pairing new equipment with an old blower or old coil that wasn't sized for it. Homes here need heat 7 months a year and cooling 4, so both halves get real use and tend to wear down around the same time. If one already failed and the other is only a few years old, a contractor can tell you whether it makes sense to wait on the second.
- What happens during an HVAC installation?
- A contractor removes the old furnace and air conditioner, or heat pump, and puts in new equipment sized for your home. This includes connecting it to your existing ductwork, running the refrigerant lines, wiring the system to the thermostat, and venting the furnace to the outside. In most places, including here, this job needs a permit from the local building office, and an inspector checks the work once it's done. Expect the contractor to run the system through a full heating and cooling cycle before they leave to confirm it's working.